/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraParameterPanelViewModel.h
static [TArray](API\Runtime\Core\Containers\TArray)< [FNiagaraParameterPanelCategory](API\Plugins\NiagaraEditor\FNiagaraParameterPanelCategory) > UserCategories;